Walker made the remarks at a field day on the White House South Lawn hosted by the council to promote a new initiative to encourage youth participation in sports.

Walker was joined by other high-profile athletes and members of the council, including Lou Ferrigno of "Incredible Hulk" fame, former Yankees pitcher Mariano Rivera and Olympic gold-medal winning volleyball player Misty May-Treanor.

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Hundreds of young people from around the country played soccer, golf, flag football, baseball and volleyball with the athletes.